Implement account check (if it's already added).

lib/roles/device/plugins/account.js

@@ -14,7 +14,35 @@ module.exports = syrup.serial()
   .define(function(options, service, identity, touch, router, push, adb) {
     var log = logger.createLogger('device:plugins:account')
 
-    router.on(wire.AccountGetMessage, function(channel, message){
+    router.on(wire.AccountCheckMessage, function(channel, message) {
+      var reply = wireutil.reply(options.serial)
+
+      log.info('Checking if account "%s" is added',message.account)
+
+      service.getAccounts(message.type)
+        .timeout(30000)
+        .then(function(accounts) {
+          if(accounts.indexOf(message.account) >= 0) {
+            push.send([
+              channel
+            , reply.okay()
+            ])
+          }
+          else {
+            throw new Error('The account is not added')
+          }
+        })
+        .catch(function(err){
+          log.error('Account check failed', err.stack)
+          push.send([
+            channel
+          , reply.fail(err.message)
+          ])
+        })
+
+    })
+
+    router.on(wire.AccountGetMessage, function(channel, message) {
       var reply = wireutil.reply(options.serial)
 
       log.info('Getting account(s) of type "%s"', message.type)

lib/roles/websocket.js

@@ -332,6 +332,16 @@ module.exports = function(options) {
             )
           ])
         })
+        .on('account.check', function(channel, responseChannel, data){
+          joinChannel(responseChannel)
+          push.send([
+            channel
+          , wireutil.transaction(
+              responseChannel
+            , new wire.AccountCheckMessage(data)
+            )
+          ])
+        })
         .on('account.remove', function(channel, responseChannel, data) {
           joinChannel(responseChannel)
           push.send([

lib/wire/wire.proto

@@ -59,6 +59,7 @@ enum MessageType {
   WifiGetStatusMessage       = 58;
   AccountAddMenuMessage      = 59;
   AccountAddMessage          = 60;
+  AccountCheckMessage        = 63;
   AccountGetMessage          = 62;
   AccountRemoveMessage       = 55;
   SdStatusMessage            = 61;
@@ -399,6 +400,11 @@ message AccountAddMessage {
   required string password = 2;
 }
 
+message AccountCheckMessage {
+  required string type = 1;
+  required string account = 2;
+}
+
 message AccountGetMessage {
   required string type = 1;
 }

res/app/components/stf/control/control-service.js

@@ -218,6 +218,13 @@ module.exports = function ControlServiceFactory(
       return sendTwoWay('screen.capture')
     }
 
+    this.checkAccount = function(type, account) {
+      return sendTwoWay('account.check', {
+        type: type
+      , account: account
+      })
+    }
+
     this.removeAccount = function(type, account) {
       return sendTwoWay('account.remove', {
         type: type